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Drill Pipe Casing
Casing, Casing Couplings, Core Tubes
Carcasa, acoplamientos de carcasa, tubos de núcleo
| Estándar | Tamaño | O.D × W | Identificación | Material | Observación |
| GB / T16950-1997 | 73 | φ73×4.5 | φ64 | DZ40 | La longitud y el hilo dependen de las demandas de custome |
| 89 | φ89×4.5 | φ80 | DZ40 | ||
| 108 | φ108×4.5 | φ99 | DZ40 | ||
| 127 | φ127×4.5 | φ116 | DZ40 | ||
| 146 | φ146×5 | φ136 | DZ40 | ||
| 168 | φ168×6.5 | φ155 | DZ40 | ||
| DCDMA | AW | φ57.4×4.40 | φ48.6 | R780 | |
| BW | φ73.2×6.35 | φ60.5 | R780 | ||
| NW | φ89.1×6.35 | φ76.4 | R780 | ||
| HW | φ114.3×6.35 | φ101.6 | R780 | ||
| PW | φ139.9×7.15 | φ125.6 | R780 | ||
| SW | φ168.3×7.15 | φ154 | R780 |
